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functions of cell wall1 provides shape to plant cell rigidity to cells2 functions as a barrier to
plasmodesmatatermed by tangl amp strasburgercytoplasmic protoplasmic bridges between 2 adjacent cellsdesmotubules connects the er of 2
advantages of autonomous transactionsan autonomous transaction once started is fully independent it shares no locks resources or commit-dependency
middle lamellait is thin amorphous intercellular matrix between 2 adjacent plant cellthe cells of plant tissue generally cemented together by an
composition of cell wallcell wall composed of cellulose hemicellulose pectin lignin cutin amp chitincell wall consists of 3 parts -1 matrixhighly
cell walldiscovered by robert hooke 1665 when he saw dead empty cork cellsbonner - studied the chemical nature of cell wallthe cell wall is a rigid
differences between prokaryotic amp eukaryotic cells sno characters prokaryotic cell eukaryotic cell 1 nuclear membranenuclear
cytoplasmname proposed by strassburger according to muhlethaler and frey- wyssling fluid outside nucleus is called cytoplasmtwo parts of cytoplasm1
modern cell theoryalso known as cell doctrine or cell principlecell theory cell lineage theory cell principleschleiden-schwanns cell theory and
short coming of cell theory exceptions of cell theoryi viruses can be considered as exception to cell theory they are made
objection of cell theory reasons of discartioni living organism are composed of various types of cells and their product but
cell theoryproposed by mathias jacob schleiden 1838 jerman botanist theodore schwann 1839 jerman zoologistit consists of 5 fundamental facts -i body
history of the cellterm cytology was given by hertwig he also wrote a book on cell and tissuefather of cytology robert hookefather of modern
cell -cell is the structural amp functional unit of lifestudy of the structure of the cell is called cytologystudy of structure and functions of the
effect on body -1 cancer -benzpyrene present in tobacco is carcinogenic responsible for lung cancer tobacoo chewing also
smoking -it means to draw tobacco smoke into the mouth or lungs amp exhale it via mouth nostrils or bothtobacco is obtained from nicotiana tobacum
dealcoholism -treatment of alcoholism or withdrawal symptoms of alcohol is known as dealcoholismrecovery from alcohol dependence is greatly aided by
drinking amp driving -it should not be mixed because alcohol -1 impairs ability to judge distances2
effect of alcohol -1 effect on nervous system -alcohol has an anesthetic effect on nervous systemit affects orientation
alcoholism -continual heavy consuming of alcohol is called alcoholism or drinkingword alcohol is refered to c2h5oh or ethyl alcohol or ethanol or
self - medication -self medication refers to the use of medicines without consulting a physician self medication may be harmful rather dangerous it
teratogens -these are chemicals or drugs causing malformed foetusthe production of monsters or malformed foetus is called tertogeny or
aspirin -it is acetylsalicyclic acid c6h4ococh3ch3it changes in salicyclic acid in bodyit is analgesic antipyratic fever reducing anti
steroids -these are derived lipidscholesterol is must in formation of steroid hormonesin steroids cyclopentanoperhydrophenentherene nucleus ring
antibiotics -chemicals produced by microorganism that inhibit the growth of other microorganismsuch microorganism which produces the antibiotics are